81311216

素因数分解:

$2^4\times 7^1\times {\mathrm{725993}}^1$

素因数の和:726008

約数の個数: 20

約数和(自身を含む): 180046512

約数和(自身を除く): 98735296

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 725993, 1451986, 2903972, 5081951, 5807944, 10163902, 11615888, 20327804, 40655608, 81311216]

約数ペア:

[(1, 81311216), (2, 40655608), (4, 20327804), (7, 11615888), (8, 10163902), (14, 5807944), (16, 5081951), (28, 2903972), (56, 1451986), (112, 725993)]